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fretje

6 years ago

Only mass can bend lasers beams (which are electromagnetic waves)

fretje

6 years ago

because mass tells space how to curve. An example can be seen in gravitational lenses (http://en.wikipedia.org/wiki/Gravitational_lens ). Light from a distant star of star group, can be focussed or blurred by a nearer group of stars between the observer and the distant star.

fretje

6 years ago

This laser can interfere though with the strong magnetic field (ex:holograms)
And light can be bent if travelling in media like glas or any other optically active matter.